Stud-setting tool.



S. SCHNEIDER.

STUD SETTING TOOL.

APPLICATION FILED PBBJS, 1913i Lmw, Panentedanm'wla.

l A mu. vnr;va.final/1111111111111@ UNITED srnans EATENT oEEioE.

SIDNEY SCHNEIDER, or CHICAGO, ILLINOIS.

l sTUnsETTING Toor..

Specification of Letters Patent.

Patented J an. 19, 1915.

Application led February 18, 1913. Serial No. 748,072.

provide an improved tool of this character of setting .a stud. 5o h which will be construction, operation.

other object of myv invention is to pro- V'de an improved stud-setting tool by which threaded studs and the like may be easily,

simple, durable and reliable and effective and elicient 1n quickly and firmly set or screwed into place without damage to the studs; ymy purpose being tor` provide an improved tool which will firmly hold or grip the stud or like member during the act of setting or fastening the stud, but ,will instantly release its hold without backing out or loosening the stud, while the tool is being detached or removed.

A further object of my invention isto provide an' improved vtool of the character which may have a set of various sized jaws or adapters for diii'erent size studs, and may be sold on the market as a stock or standard tool for the purpose.

Other objects of my invention will appear hereinafter.

My inventionconsists in the features of novelty exemplified in the construction, coinbination and arrangement of parts herein described, and shown in the drawings which illustrate one embodiment of my invention, and more particularly pointed out in the appended claims.

In the dra-wings, bled view, partly in elevation, and partly in section, of the parts of a structureembodying my invention. Fig.2is an assembled view partly 'in' section, showing the tool in the act ig. 3 is a similar view of th mit its removal therefrom. Fig. 4 is a perspective-view of one,of adapters, and Fig. 5 is a transverse sectional view on the line 5 -5 of Fig..2.

' the drawings I have illustratedmy in- .bod

' A, th

accompanying Y Figure 1 is a dis-assem the jaw sockets or enlarged to form,

ciallydesiv ed for setting at'bothends, but it will be obvious, to one skilled in the art, ater having obtained an understanding of my invention from the isclosures herein made, that the principles and functions o f my invention may be emstuds threaded drawing is intende as representative of the various articles or members 'of this character, and the-plate B illustrated is likewise representative of any member or part to ywhich a stud is to be fastened. The stud A as will be noticed islthreaded at both ends.

accordance with my lnvention has an element .or member which is adapted to be mounted on the studto be set, and which, in conjunction with another eement or elements, operates during the setting operation to tightly grip and hold the stud. in removing or detaching or loosening the stud.`

In the structure shown in the member or element v.which n the stud is represented by a or socket member C, the lower portion C1 of the bore of which is threaded to receive the correspondingly threaded end A2 of the stud, and the upper portion C2 ofwhich is in a sense, a" bearing for a cylindrical portion D1 of a shank or inandrel D; In. practice I provide a number of the drawing is mountable hollow sleeve v these sockets with each tool. Their thread- -ed portions which receive the studs vary in with'the diderent size studs, ut

the shank porbe interchangeproand accordance their portions which receive tion D1 are uniform so as to able. The shank D has a tongue from the bearing portion this tongue is reduced in diameter so thatl into the upper end o the partially threaded portionl C1 ot the socket member. These parts are preferably so proportioned that the end ot the tongue and of "the stud meet at about the middle of the stud bore C1 of the socket member, as clearly shown in Figs. 2 and 3, and the end portion D3 ot the tongue is still further reduced so as to contact with or engage the end of the stud and not interfere with the threads. The shank D at the base of the bearing portion D1, is enlarged to a eter substantially equal to that of the socket so that its surface is dush therea shoulder DL is thereby formed. The shank portion D1 has a jecting pin 5 which, when the parts are assembled, plays in a circumferential slot Da in the upper portion C2 of the jaw or adapter C. This arrangement provides tor acertain relative rotative movement between the shank and the socket or adapter mem-v ber C.

The structure illustrated has member, with, and y i signed more particularly for setting rightare determining factors in Lto hand threaded studs, although it is obvious that my invention is not so limited, and that the requirements and conditions to be met the design of a this character. Theslot D6 inchned at an angle to the longitudinal axis of the stud and tool, as shown clearly. llt may follow a progressive spiral, and since this structure is a apted for ri ght-handed studs, the pitch ot the stud is lefthanded, that is, away from the stud in a left-handed direction of rotation of the shank D. The slot thus presents a cam, so to speak, to the pin D5 which causes a relative longitudinal movement of the shank and socket C when they are relatively rotated. Hence in this structure it will be seen that by rotating the shank right-handedly the socket member will likewise be rotated by the pin D5, engaging the end slot D. The elements acting in conjunction in this manner carry the stud therewith and screw it into the plate. The tool may vbe turned thus until thefstud has beenlvery tightly set in the plate. This is true since the end portion Ds of the tongue blocks or prevents the stud from screwing into the socket member only so tar (Fig. 2).- Thus the tool obtains a rm setting grip i on the stud without injuring the threads thereof, but there is a tendency for the stud to screw very tightly into the socket member. Flowsetting tool of is pitched tion,

laterally pro- C4 of the maar@ ever, after the stud has been tightly set in the plate the tool, a slight reverse rotainstantly releases its grip upon the stud. This is apparent for the reason that on account of the cam slot D and the pin D5, the shank and portion Ds move longitudinally away from the stud the instant the stud is given a reverse rotation relatively to the socket member as shown clearly in Fig. 3. This instantly releases the tool trom the stud without imparting the least unscrewing or loosening strain upon the stud. The relative reverse rotation o the shank need be just suicient to relieve the hold on the stud andaccordingly the length and pitch of slot D may be just suilicient tor this purpose. Tn this structure T have found about a half-turn is sudicient tor this purpose. Hence, ll have made the 'slot long enough topermit about a halt-turn of lthe pin D5. The reverse movement of the shank to release the hold upon the stud may be continueduntil the pin strikes the slot-end C, and since by this time the tongue has both members or elements of the tool may be freely rotated together and removed or disconnected from the stud without straining the stud or loosening it in the least.

Tn order that the. socket members of various sizes may be interchanged as their slots D have openings or entrances D7 for the pin D5. ll guard against the acci dental separation of the socket and shank by means of' a movable or slidable sleeve member F which tion to coverthe parts. This sleeve has a s operates with a small .pin F2 on the socket members. AThis slot has an entrance opening F3 for pin F2. After the socket member has been slipped on the shank., the sleeve F is shifted down until the pin. F2 enters slot F1. Tt is then rotated until the entrance opening Fs is moved out of relative position with respect to the range of movement or pin D5 in slot De. Tn this position the sleeve is yieldingly locked by a spring catchwhich may consist of a small spring-pressed ball H arranged to engage a small hole lillbin the e emmay described, the threaded socket member means on sai member playing m said slot for longitudinally moving sai shank member in said socket member when the'shank is rotated in one direction, sm

be shifted to a posipin and slot and adjacent lot F1 which codesired, v

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up iat said socket member,

means being adapted to be passed through the open end of said slot to separate and assemblesaid socket member and shank.

2. The combination of an internally threaded socket member adapted to t th(` stud to be set and having a cam slot in its periphery inclined with respect to the axis of `said socket member, said cam slot having an opening, a shank member rotatable Within said socket member with its end in position to engage the end of the stud in the socket, and a pin on said shank member adapted to be passed through said opening l and to play in vsaid cam slot whereby the u shank member and socket member may be readily separated and assembled.

n testimony whereof I have signed my name to this specification, in the presence oi' two subscribing Witnesses, on this 19th clap.Y of Sept. A. D. 1912.

. SIDNEY SCHNEIDER.

l/Vitnesses C. MARGAARD,

HERMAN G. R. PURE. 

